21212464

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{857}}^1$

素因数の和:902

約数の個数: 80

約数和(自身を含む): 53621568

約数和(自身を除く): 32409104

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 52, 56, 68, 91, 104, 112, 119, 136, 182, 208, 221, 238, 272, 364, 442, 476, 728, 857, 884, 952, 1456, 1547, 1714, 1768, 1904, 3094, 3428, 3536, 5999, 6188, 6856, 11141, 11998, 12376, 13712, 14569, 22282, 23996, 24752, 29138, 44564, 47992, 58276, 77987, 89128, 95984, 101983, 116552, 155974, 178256, 189397, 203966, 233104, 311948, 378794, 407932, 623896, 757588, 815864, 1247792, 1325779, 1515176, 1631728, 2651558, 3030352, 5303116, 10606232, 21212464]

約数ペア:

[(1, 21212464), (2, 10606232), (4, 5303116), (7, 3030352), (8, 2651558), (13, 1631728), (14, 1515176), (16, 1325779), (17, 1247792), (26, 815864), (28, 757588), (34, 623896), (52, 407932), (56, 378794), (68, 311948), (91, 233104), (104, 203966), (112, 189397), (119, 178256), (136, 155974), (182, 116552), (208, 101983), (221, 95984), (238, 89128), (272, 77987), (364, 58276), (442, 47992), (476, 44564), (728, 29138), (857, 24752), (884, 23996), (952, 22282), (1456, 14569), (1547, 13712), (1714, 12376), (1768, 11998), (1904, 11141), (3094, 6856), (3428, 6188), (3536, 5999)]